CBSE Class 12 Chemistry 2019 Outside Delhi Set 2 Solved Paper

Question : 20 of 27

Marks: +1, -0

Among all the isomers of molecular formula

{\C}_4 {\H}_9 {\Br}

, identify
(a) the one isomer which is optically active.
(b) the one isomer which is highly reactive towards

{\S}_{ {\N}}^2

.
(c) the two isomers which give same product on dehydrohalogenation with alcoholic

{\KOH}

Solution:

(a)

{\CH}_3 {\CH}_2 {\CH}( {\Br}) {\CH}_3

(b)

{\CH}_3 {\CH}_2 {\CH}_2 {\CH}_2 {\Br}

(c)

( {\CH}_3) _3 {\CBr}

and

( {\CH}_3) _2 {\CHCH}_2 {\Br}

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